Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 407

• Writing "0" in Pr.69 clears the cumulative count.
Pr.68
(If it is below 3.1s, 3.1s is set.)
Inverter
output
frequency
0
Retry start
Fault occurrence
Retry success count
Y64 ON
Retry success example
 Selecting retry generating faults (Pr.65)
• Using Pr.65, the fault that causes a retry is selectable. No retry is made for the fault not indicated. (For the fault details,
refer to page 745.) ● indicates the faults selected for retry.
Retry-making
fault
0
E.OC1 ●
E.OC2 ●
E.OC3 ●
E.OV1 ●
E.OV2 ●
E.OV3 ●
E.THM ●
E.THT ●
E.IPF ●
E.UVT ●
E. BE ●
E. GF ●
E.OHT ●
E.OLT ●
E.OPT ●
E.OP1 ●
E. PE ●
E.MB1 ●
NOTE
• Use the retry function only when the operation can be resumed after resetting a protective function activation. Making a retry
against the protective function, which is activated by an unknown condition, will lead the inverter and motor to be faulty. Identify
and remove the cause of the protective function activation before restarting the operation.
• If the retry function operates during PU operations, the operating conditions (forward/reverse rotation) are stored; and
operations resume after retry reset.
• Only the fault details for the first fault that occurred during retry are stored in the faults history.
• The reset by the retry function does not clear the accumulated data of the electronic thermal O/L relay, regenerative brake
duty, etc. (This is different from power supply reset or reset by RES signal.)
• When the parameter storage device fault (E.PE) is occurring and reading of the retry-function-related parameters is not
possible, retry cannot operated.
• Changing the terminal assignment using Pr.190 to Pr.196 (Output terminal function selection) may affect the other
functions. Set parameters after confirming the function of each terminal.
406
5. PARAMETERS
5.10 (H) Protective function parameter
Retry success
Pr. 68 × 4
Time
Success count + 1
Pr.65 setting
1 2 3 4
● ● ●
● ● ●
● ● ●
● ● ●
● ● ●
● ● ●
●
●
●
●
●
●
●
●
●
Pr.68 Pr.68
Inverter
output
frequency
0
First
retry
Fault Fault
occurrence occurrence
Fault signal
(ALM)
ON
Y64
Retry failure example
Retry-making
fault
5
● E.MB2 ●
E.MB3 ●
● E.MB4 ●
E.MB5 ●
E.MB6 ●
E.MB7 ●
E.OS ●
E.OSD ●
E.PTC ●
E.CDO ●
E.SER ●
E.USB ●
E.ILF ●
E.PID ●
E.PCH ●
E.SOT ●
E.LCI ●
Pr.68
Time
Second Third
retry retry
Retry failure
Fault
(E.RET)
occurrence
ON
ON ON
Pr.65 setting
0 1 2 3
● ●
4 5
●
●
●
●
●
●
●
●
●
●
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